Improvement in armor for hose



H. WAKEMAN. Armor for Hose.

No. 213,363 Patented Mar. 18, 1879.

N4 PETERS. PHOTO-LITHOudAPHER, WASHINGTON. D C,

UNrrnn STATES PATENT OFFICE.

HARWOOD WAKEMAN, OF NEW YORK, N. Y.

IMPROVEMENT IN ARMOR FOR HOSE.

Specification forming part of Letters Patent No. 213,363, dated March18, 1879; application filed April 2, 187e.

To all whom it may concern:

Be it known that I, HARwoon WAnnMAN, of the city and State of New York,have invented an Improvement in Armor for Flexible Tubing, of which thefollowing is'a specilieation:

In various patents heretofore granted to me, flexible tubes forair-brakes, mining, and other purposes are described and shown, with ametallic armor that serves to protect the same from wear and from unduestrain by the internal pressure, and for preserving the cylindricalcharacter of the tube.

My present invention has the same objects in view, but relates to adifferent construction of metallic armor or covering.

I make use of a wire armor that is laid together in a manner similar toa knitted fabric and placed around the iexible tube, or said wire armormay be knitted in a tubular form and slipped over the india-rubber orother exible hose.

In the drawings I have represented a piece of exible hose with the armorapplied to the same.

The tube a is to be of leather, rubber, or other suitable material, andthe armor around the same is composedl of interlocking loops of wiresimilar to knitting.

The range of loops b is interlooped by the second range, c, of loops,and so on.` This tubular armor may be knitted with wire of any suitablesize similar to tubular knitting, and the same may be laid up by hand orby suitable machinery. l

I have shown the ranges of loops b c d as forming ribbon that is laidhelically around the tube, as represented, and the adjacent edgesconnected by an interlacing wire, i. This construction allows the ribbon'or strip to be made by machinery and then laid around the tube andinterlaced by hand.

The looping may be single, as shown in Fig. l, or the looping may bedouble, as shown in Fig. 2, the row of loops that is being laid up beinginserted not through the last laid row of loops, but the row of loopsnext behind the edge row. Thiseauses the armor fabric to be much morecompact and strong than when only one range of loops is made use of.

The loops may be twisted so that the wires cross, as shown in Fig. 3,thereby covering` the hose more uniformly, and lessening the size of themeshes.

In either of the forms shown in Figs. 2 or 3, the armor is made of theknitted wire in tubular form, the loops being modified in their shape orsize from those shown inFig. l. Fio. 4 1s an end view of theknitted-wire tube.

The wire made use of may be single, and preferably steel galvanized, orit may be composed of several smaller wires twisted together to form asmall-sized wire rope.

In my Patent No. 188,446, a flexible armor is shown, in which the wiresare interlooped in a form that results from revolving one heliX of wire,and thereby interlacing it into another helix, and then flattening thehelices, and the wire armor has to be made in a flat form or sheet, andthen bent up into a cylindrical form.

In my present invention the armor is made of wire looped together likeknitting; thereby each bent-np loop is carried bodily through one of thepreviously bent-up loops, and spread for the reception of the loop inthe next range of loops.

In consequence of this construction of armor I am enabled to make theWire into a complete cylindrical tube, either around the exible tube oradapted to the reception of such tube.

In my aforesaid patent the wire armor is represented with the flattenedhelices as at a slight inclination to the tube longitudinally.

In the present instance the narrowstrip of armor is wound in a screwform around the tube and the edges interlaced. This allows for the armorbeing made in a much narrower strip than in aforesaid patent, andpromotes the iiexibility ot' the armor.

I claim as my inventionl. The armor for flexible hose, consisting of atubular knitted wire fabric, substantially as set forth.

2. The metallic armor for hose, consisting of a strip of wire fabricwound helically around the flexible hose, with the contiguous edgesunited by a lacing of wire, substantially as set forth.

8Signed by me this 29th day of March, A. D. l 78.

HAItWOOD WAKEMAN.

Witnesses Guo. T. PINcKNnv, HAROLD SERRELL.

